Rotary swing



April 16, 1929. c. c. MILLIKAN ROTARY SWING Filed May 12, 1926 5Sheets-Sheet anmutoz 67am: 6. flflz'ZZzJian,

Wii'ness:

April 16, 1929. c. c. MILLIKAN 1,709,273

ROTARY SWING Filed May 12, 1926 5 Sheets-Sheet 5 fluoenkva UNITED STATESPATENT OFFICE.

CHASE O.'MILLIKAN, OF KANSAS CITY, KANSAS.

ROTARY SWING.

Application filed May 12, 1926.

My invention relates in general to amuse ment apparatus, and pertainsmore particularly to rotary swings, and one obJect is to provide novelpower transmission mechanism whereby the swing can be manuallyaccompanying drawings, in whi h:

Fig. l is a plan view of the apparatus.

Fig. 2 is a side elevation of the apparatus.

3 is a vertical cross section on line 33 of Fig. 1.

Fig. 4 is a plan view of certain parts of the upper portion of theapparatus.

Fig. 5 is an irregular horizontal section on line 55 of Fig. 3.

Fig. 6 is a section of a portionof the machine in folded position. Fig.7is a section of another part of the machine.

In carrying out the invention I employ a lower frame 2 consisting of abase plate 4, radial supporting members 6, and braces 8. The base plate4 has upwardly projecting lugs 10 to which the supporting members 6 arefoldably connected by pivots 12. The braces 8 are foldably connected attheir lower ends to the supporting members 6 by pivots 14 and arearranged to bear at their upper ends against a stationary shaft 16projecting vertically from the base plate 4, to which it is rigidlyconnected.

18 designates an upper frame consisting of a tubular shaft 20, a plate22 fixed to the upper portion of said tubular shaft and provided withdepending lugs 24, radial arms 26 foldably connected to the lugs 24 bypivot-s 28, and braces 30 foldably connected to the arms 26 by pivots32.

The tubular shaft 20 is mounted upon the stationary shaft 16 and astep-bearing 34, which latter consists of a plate 36 fixed to thestationary shaft 16. plate 38 fixed to the lower end of the tubularshaft 20, and ballbearinsis 40 arranged in raceways in the adjacentsidesof the plates 36 and 38. An eccentric pin 42 is secured to a stationarycrank 44, which is fixed to the upper end of the stationary shaft 16.

Serial No. 108,585.

46 designates a plurality of connecting rods rotatably mounted at theirinner ends upon the eccentric pin 42 and pivotally connected at theirouter ends to oscillatory levers 48 mounted intermediate their ends uponfulcrums 50 carried by the radial arms 26.

The levers 48 are oscillated by cables 52 and 54 secured to the oppositeends of said levers 48 and running around sheaves 56 and 58,respectively, mounted upon spindles'6O projecting upwardly from theouter ends of the radial arms 26 and supported at their upper ends bybrackets 62.

64 designates seats having backs 66 foldably mounted upon hinges 68, theupper ends of which are looped around rings 70 suspended by rods 72,which in turn are suspended by rings 74 connected to eye-bolts 7 securedto the outer ends of the radial arms 26.

The forward rings 70 are equipped with blocks 78 over which the cables52 and 54 run, said cables being provided at their lower ends withhandles or stirrups 80 and 82, respectively, arranged within convenientreach of the occupants of the seats 64.

The backs 66 of the seats are held in raised position by arms 84connected to the rings 70, the forward end of each outer arm beingformed into a hook 86 which may be disengaged from its respective ring70 to permit a person to readily gain access to or leave the seat.

lVith the parts arranged as shown and described, it is apparent thatpassengers occupying the seats 64 can impart a rotary motion to theupper frame by alternately pulling upon the stirrups 80, 82, with thehands or by pushing upon said stirrups with the feet, the power thusapplied being exerted to rotate the upper frame in the direction of thearrow at, Fig. 1, by being transmitted through the intermediary of thecables 52 and 54, the levers 48 and the connecting rods 46.

WVhen not in use the apparatus can be folded into compact form forstorage or transportation by removing the connecting rods 46, the crank44, and the rods 72, and slipping the tubular shaft 20 from thestationary shaft 16, after which the braces 30 may be folded outwardlyagainst the under sides of the arms 26, which latter are then foldedagainst the tubular shaft 20, as shown by Fig. 6. After the upper framehas been folded as stated, the lower frame 2 may be cise, and while Ihave shown and describedthe preferred construction, combination andarrangementof parts, I reserve the right to all'such modifications asproperly fall within the spirit and scope of the invention as claimed.

I-lav-ing thus described my invention, what I claim and desire to secureby Letters Patent, is:

1. In an apparatus of the character described, a plurality of seats,radial arms for supporting said seats, a plate to which said arms arepivotally connected at their upper ends, a tubular shaft to which saidplate is connected, a step bearing upon which said tubular shaft ismounted, inclined braces pivotally connected to the radial arms andadapted to rest upon said step bearing and abut said tubular shaft, astationary shaft upon which the tubular shaft is rotatably mounted, amember arranged eccentrically to the axis of the stationary shaft, andpower transmission mechanism connected to said eccentric member andcontrollable from the seats.

2. In an amusement apparatus, a base plate, a vertically disposed shaftfixed to said base plate, radial supporting members pivotally connectedto said base plate, braces pivotally connected at their lower ends tosaid radial supporting members and adapted to abut at their upper endsagainst the shaft, a rotary frame mounted upon the shaft, seatssuspended from said frame, a pin eccentric'ally connected to the shaft,and power transmission mechanism connected to said pin and operable fromthe seats.

3. In an amusementdevice, a plurality of radial supports, a stationaryshaft mounted upon said supports, a rotary tubular shaft mounted uponsaid stationary shaft, radial arms extending from the upper portion ofsaid tubular shaft, seats arranged between and suspended from said arms,oscillatory levers fulcrumed upon said arms, cables'connected toopposite ends of said'levers and terminating adjacent to the respectiveseats,

